When trying to connect to my VPN provider using openvpn (2.1_rc15) on
openbsd (both 4.4 and 4.5) everything works fine (i.e. i receive ip-adress
and correct routing table) except that I can't connect anywhere?!

I can ping my own tun0 ip-adress but seems like all other packets gets blocked.
(I'm not using pf)

The same client conf works fine in freebsd,linux,netbsd and windows so it seems
that I'm missing some special sysctl setting on openbsd?